# Proposed AD 2001-SW-37-AD: Bell Helicopter Textron, Inc. Model 205A, 205A-1, 205B, 212, 412, 412EP, and 412CF Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2002-09-04
- Products: Bell Helicopter Textron
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 28, 2001, 66 FR 59374
- Comments due: January 28, 2002
- Became: [AD 2002-09-04](https://openairdocs.org/ad/2002-09-04)
- Docket: 2001-SW-37-AD
- FR document: 01-29593
- Official PDF: https://openairdocs.org/files/sha256/09/f2/09f28c9c2b802008e179ee3df475eeda2e42e271aab42e171bd3a09e786407b4 (from https://www.govinfo.gov/content/pkg/FR-2001-11-28/pdf/01-29593.pdf)
- Federal Register: https://www.federalregister.gov/documents/2001/11/28/01-29593/airworthiness-directives-bell-helicopter-textron-inc-model-205a-205a-1-205b-212-412-412ep-and-412cf
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7BBC3FE2572C6D0086256B120061B442.0001
- Page: https://openairdocs.org/proposed/2001-SW-37-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) for Bell Helicopter Textron, Inc. (BHTI) Model 205A, 205A-1, 205B, 212, 412, 412EP, and 412CF helicopters. The AD would require inspecting each affected tail rotor blade forward tip weight retention block (tip block) and the aft tip closure (tip closure) for adhesive bond voids and removing any tail rotor blade with an excessive void from service. The AD would also require modifying certain tail rotor blades by installing shear pins and tip closure rivets. This proposal is prompted by five occurrences of missing tip blocks or tip closures resulting in minor to substantial damage. The actions specified by the proposed AD are intended to prevent loss of a tip block or tip closure, loss of a tail rotor blade, and subsequent loss of control of the helicopter.

## Notices in this docket

- Nov 28, 2001: Notice of proposed rulemaking (NPRM). (first notice), FR document 01-29593, comments due Jan 28, 2002 (https://www.federalregister.gov/documents/2001/11/28/01-29593/airworthiness-directives-bell-helicopter-textron-inc-model-205a-205a-1-205b-212-412-412ep-and-412cf)

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